feat(otel): respect standard OTel env vars for exporter selection (#7144)

Signed-off-by: Adrian Cole <adrian@tetrate.io>

crates/goose-server/src/commands/agent.rs

@@ -58,6 +58,12 @@ pub async fn run() -> Result<()> {
     axum::serve(listener, app)
         .with_graceful_shutdown(shutdown_signal())
         .await?;
+
+    if goose::otel::otlp::is_otlp_initialized() {
+        tokio::time::sleep(tokio::time::Duration::from_millis(100)).await;
+        goose::otel::otlp::shutdown_otlp();
+    }
+
     info!("server shutdown complete");
     Ok(())
 }

crates/goose-server/src/logging.rs

@@ -5,7 +5,8 @@ use tracing_subscriber::{
     Registry,
 };
 
-use goose::tracing::{langfuse_layer, otlp_layer};
+use goose::otel::otlp;
+use goose::tracing::langfuse_layer;
 
 /// Sets up the logging infrastructure for the application.
 /// This includes:
@@ -54,23 +55,7 @@ pub fn setup_logging(name: Option<&str>) -> Result<()> {
         console_layer.with_filter(base_env_filter).boxed(),
     ];
 
-    if let Ok((otlp_tracing_layer, otlp_metrics_layer, otlp_logs_layer)) = otlp_layer::init_otlp() {
-        layers.push(
-            otlp_tracing_layer
-                .with_filter(otlp_layer::create_otlp_tracing_filter())
-                .boxed(),
-        );
-        layers.push(
-            otlp_metrics_layer
-                .with_filter(otlp_layer::create_otlp_metrics_filter())
-                .boxed(),
-        );
-        layers.push(
-            otlp_logs_layer
-                .with_filter(otlp_layer::create_otlp_logs_filter())
-                .boxed(),
-        );
-    }
+    layers.extend(otlp::init_otlp_layers(goose::config::Config::global()));
 
     if let Some(langfuse) = langfuse_layer::create_langfuse_observer() {
         layers.push(langfuse.with_filter(LevelFilter::DEBUG).boxed());